Hi everyone,
I’m trying to allocate a 2D array (62 x 62) using Memory_alloc. I can do for a double array as below:
//create L
L = (double**)Memory_alloc(DDR_HEAP, band*sizeof(double), 4, NULL);
if(L == NULL)
{
System_printf("Out of memory during L allocation\n");
returnn = 0;
return returnn;
}
else
{
for (i = 0; i < band; i++)
{
L[i] = (double*)Memory_alloc(DDR_HEAP, band*sizeof(double), 4, NULL);
if(L[i] == NULL)
{
System_printf("Out of memory during L allocation\n");
returnn = 0;
return returnn;
}
}
}
For verification, I use the following code to assign a value to the array:
double pointt=0;
for (i = 0; i < band; i++)
{
for (j = 0; j < band; j++)
{
L[i][j] = pointt;
pointt++;
}
}
However, when I want to do the same for a Bool array (same size, 62 x 62):
//create P
P = (Bool**)Memory_alloc(DDR_HEAP, band*sizeof(Bool), 4, NULL);
if(P == NULL)
{
System_printf("Out of memory during P allocation\n");
returnn = 0;
return returnn;
}
else
{
for (i = 0; i < band; i++)
{
P[i] = (Bool*)Memory_alloc(DDR_HEAP, band*sizeof(Bool), 4, NULL);
if(P[i] == NULL)
{
System_printf("Out of memory during P allocation\n");
returnn = 0;
return returnn;
}
}
}
And use code snippet below for verification,
Bool pointt=1;
for (i = 0; i < band; i++)
{
for (j = 0; j < band; j++)
{
P[i][j] = pointt;
}
}
I received error message “memory prevented reading of target memory at ……….” When debugging P[61][61] location and some other location. No problem with the early location such as P[0][0], P[2][2] etc.
I don’t think this is due to insufficient heap memory because when I change the type of P to double, there is no such problem.
I also have tried other align parameter in the Memory_alloc but the problem is still there.
Can anyone point me the reason? For the information, I’m using TMDSEVMC6678L, CGT 7.4.1. The project is using OpenMP but I don’t think this is related to OpenMP or MCSDK since this portion of code is outside the OpenMP pragma.
Kind regards,
Rizuan
